Pell backers clash with 'angry' protester

Pell supporters sang hymns outside the High Court and clashed with an abuse victims' advocate

Supporters of George Pell have clashed outside the High Court with a man calling for the disgraced Catholic cardinal to "burn in hell".

The full bench of the High Court will hear his legal team's final bid for his freedom in Canberra on Wednesday.

Michael Advocate from Victim Justice stood outside the court holding signs depicting Pell in front of fiery scenes and the words "Burn in hell Pell".

A group of Pell supporters tried to block Mr Advocate from speaking to reporters, yelling for Pell to be forgiven.

The group of about 50 supporters, many holding Australian flags, sang hymns outside of the court as lawyers prepared for the case inside.

Bhikku Buddha Dhatu told AAP he had lived through the Vietnam War, showing his burn scars and saying he had forgiven those responsible.

Mr Advocate, who supports close to 200 victims of abuse, said more help was needed for compensation and justice.

"George Pell is a terrible man," he told reporters.

"A lot of us here are Catholics but we're just outraged and we've got to get rid of this idiot.

"If he does get released I'd say George, respectfully, get on a plane, go back to Italy and we hope to never see you again."

Pell, 78, was jailed for six years last year for sexually abusing two choirboys at Melbourne's St Patrick's Cathedral, shortly after being appointed Archbishop of Melbourne in 1996.